Upgrading from 1.20.1 to 1.20.4 breaks playback with libcuda error

Plex Media Server
,
1

Server Version#: 1.20.1.3252 vs 1.20.4.3517
Player Version#: 4.34.4

After logging in to my server’s web interface I’m prompted to install 1.20.4, so as usual, I do install the latest version. I go to play media and I get “There was an unexpected error during playback.” no matter which media I play. Looking at the Plex Media Server.log file I see this:

Nov 11, 2020 14:57:00.209 [0x7fd0627fc700] ERROR - [Transcode] [FFMPEG] - Cannot load libcuda.so.1
Nov 11, 2020 14:57:00.209 [0x7fd0627fc700] ERROR - [Transcode] [FFMPEG] - Could not dynamically load CUDA

I should note - there’s no GPU in this box, there’s no cuda libraries, I’ve never had this enabled. I do have hardware transcoding available (Settings -> Transcoder -> Use hardware acceleration when available) but this hasn’t posed any problems. When reinstalling the old version of the software:

dpkg -i plexmediaserver_1.20.1.3252-a78fef9a9_amd64.deb

dpkg: warning: downgrading plexmediaserver from 1.20.4.3517-ab5e1197c to 1.20.1.3252-a78fef9a9

PlexMediaServer install: Completing final configuration.
PlexMediaServer install: Starting Plex Media Server.
PlexMediaServer install: PlexMediaServer-1.20.1.3252-a78fef9a9 - Installation successful. Errors: 0, Warnings: 0

I’m then able to play media as normal.

Here’s my log firing up:

Nov 11, 2020 14:59:54.943 [0x7f99160dc700] INFO - Plex Media Server v1.20.1.3252-a78fef9a9 - Ubuntu PC x86_64 - build: linux-x86_64 debian - GMT -05:00
Nov 11, 2020 14:59:54.943 [0x7f99160dc700] INFO - Linux version: 18.04.3 LTS (Bionic Beaver), language: en-US
Nov 11, 2020 14:59:54.943 [0x7f99160dc700] INFO - Processor Intel® Xeon® CPU X3470 @ 2.93GHz

I’m using Firefox 81.0.2 (64-bit) to play through the web.

2

I need logs please. Snippets won’t show this.

Which CPU is being used? Is this a VM or other abstraction (Container) ?

3

Hi Chuck,

Sorry for the late reply. My logs roll over pretty quick so I don’t have the full logs anymore. The server’s physical CPU is being used, there’s no abstraction.

lscpu

Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 8
On-line CPU(s) list: 0-7
Thread(s) per core: 2
Core(s) per socket: 4
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 30
Model name: Intel® Xeon® CPU X3470 @ 2.93GHz

4

edit: disregard, you are not using gpu

  • make sure debug (not verbose) logs enabled Plex Web > settings > server > general
    image

  • Plex Web > settings > troubleshooting > download logs

  • attach whole zip file to post (drag an drop, or use attach button)

see also @ https://support.plex.tv/articles/200250417-plex-media-server-log-files/

5

I repeat my initial request.